Free image tool
Color Contrast Checker
Check the contrast ratio of two colors against WCAG AA text thresholds.
Use Color Contrast Checker
Why use Color Contrast Checker?
Made for this task
Check the contrast ratio of two colors against WCAG AA text thresholds.
Clear result
Download the processed file or copy the result shown on the page.
Private processing
Your input stays in your browser while you work.
No account
Use the tool without signing in.
Frequently asked questions
What does Color Contrast Checker do?
Check the contrast ratio of two colors against WCAG AA text thresholds.
Do I need to install anything to use Color Contrast Checker?
No. Open this page in a supported desktop browser and use the tool here.
Does Color Contrast Checker upload my file?
No. Your input stays in this browser tab.
Can I use Color Contrast Checker for free?
Yes. This tool is free to use without an account.
What is Color Contrast Checker?
Check the contrast ratio of two colors against WCAG AA text thresholds.
How to use Color Contrast Checker
- Enter the values or grant the browser permission the tool needs.
- Adjust the available controls.
- Review the result on this page.
- Copy or download the result when available.
Image file and Edited download
| Feature | Image file | Edited download |
|---|---|---|
| Purpose | Keep the original image file | Create edited download |
| Where processing happens | Your browser | Your browser |
| Result | Original file stays on your device | Download or copy the new result |
When to use Color Contrast Checker
Check the contrast ratio of two colors against WCAG AA text thresholds. Keep your original file so you can make a different version later.